Add fast blink support
Fast blink is implemented using the new main loop changes. It may mark a
few characters too many as dirty when the blink state hasn't changed,
but it's not a major issue.
cheers
aes
From 9a1709928bd2e2bd8f8d7b5a63f9aec5d073d376 Mon Sep 17 00:00:00 2001
From: Anders Eurenius <a...@spotify.com>
Date: Sun, 22 Jun 2014 16:02:06 +0200
Subject: [PATCH 7/8] Add fast blink support
Fast blink is implemented using the new main loop changes. It may mark a
few characters too many as dirty when the blink state hasn't changed,
but it's not a major issue.
---
st.c | 28 ++++++++++++++++++++++++++++
1 file changed, 28 insertions(+)
diff --git a/st.c b/st.c
index fc3af74..f256528 100644
--- a/st.c
+++ b/st.c
@@ -3244,6 +3244,9 @@ xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
if(base.mode & ATTR_BLINK && term.mode & MODE_BLINK)
fg = bg;
+ if(base.mode & ATTR_FASTBLINK && term.mode & MODE_FBLINK)
+ fg = bg;
+
if(base.mode & ATTR_INVISIBLE)
fg = bg;
@@ -3794,6 +3797,26 @@ int do_select(struct timeval *tv)
(FD_ISSET(cmdfd, &rfd)? cmd_activity: 0);
}
+int
+setblinks(struct timeval *now)
+{
+ unsigned long long int t = now->tv_sec * 1000 + now->tv_usec / 1000;
+ int blink, fblink, change = 0;
+
+ blink = (t / blinktimeout) & 1;
+ if(!!(term.mode & MODE_BLINK) != blink)
+ change = 1;
+
+ fblink = (t / (blinktimeout / 4)) & 1;
+ if(!!(term.mode & MODE_FBLINK) != fblink)
+ change = 1;
+
+ MODBIT(term.mode, blink, MODE_BLINK);
+ MODBIT(term.mode, fblink, MODE_FBLINK);
+
+ return change;
+}
+
void
run(void) {
XEvent ev;
@@ -3827,6 +3850,11 @@ run(void) {
tv = &drawtimeout;
dodraw = 0;
+ if(blinktimeout && blinkset && setblinks(&now)) {
+ tsetdirtattr(ATTR_BLINK);
+ tsetdirtattr(ATTR_FASTBLINK);
+ dodraw = 1;
+ }
deltatime = TIMEDIFF(now, last);
if(deltatime > (xev? (1000/xfps) : (1000/actionfps))
|| deltatime < 0) {
--
2.0.0
